125697973 has 2 divisors, whose sum is σ = 125697974. Its totient is φ = 125697972.

The previous prime is 125697961. The next prime is 125697989. The reversal of 125697973 is 379796521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125596849 + 101124 = 11207^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 125697973 - 2²¹ = 123600821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125697953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62848986 + 62848987.

It is an arithmetic number, because the mean of its divisors is an integer number (62848987).

Almost surely, 2^125697973 is an apocalyptic number.

It is an amenable number.

125697973 is a deficient number, since it is larger than the sum of its proper divisors (1).

125697973 is an equidigital number, since it uses as much as digits as its factorization.

125697973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 49.

The square root of 125697973 is about 11211.5107367384. The cubic root of 125697973 is about 500.9289038732.

The spelling of 125697973 in words is "one hundred twenty-five million, six hundred ninety-seven thousand, nine hundred seventy-three".